We’re told four UBS employees were pulled out of the Stamford office Tuesday, after two of them returned from vacation. Apparently all four “worked in operations and were responsible for securities movements and payments.”

It’s unclear at this time what happened. A “major meeting was held yesterday with senior MD’s to asses the damage.”

If you know of any other details, or if this was a Jim Glover-esque incident, do get in touch.

Update: According to a spokesperson for the bank, it was UBS that escorted the employees out of the building, and “not enforcement officials.” The employees were asked to leave “pending an internal review into their conduct.”